Arms, Karen, author
Saunders College Publishing, 1990
Buku Teks
editors in chief, Sybil P. Parker, Robert A. Corbitt
McGraw-Hill, 1993
Buku Referensi
Enger, Eldon D., author
McGraw-Hill Higher Education, 2004
Buku Referensi
Cunningham, William P., author
WCB/McGraw-Hill, 1999
Buku Referensi
Peavy, Howard S., author
McGraw-Hill , 1985
Buku Teks